Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fbec71373192cc0b56de931beb5c04f360d6f29d6f6fd460979b048b7017139e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^